Cavity for ball and rod toy construction set



FIG. 1 is a perspective view of a cavity for ball and rod toy construction set showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevation view thereof, the rear elevation view being identical thereto; and,

FIG. 5 is a side elevation view thereof, the opposite side elevation view being identical thereto. 

The ornamental design for a cavity for ball and rod toy construction set, as shown and described. 